摘要
带强极性集团的高分子染料 A 与极性较弱的高分子材料 B 构成的 ABAB…交替型 LB膜(?)是一种热力学稳定性较高的非中心对称材料。小角 x 光衍射及光学二次谐波(SHG)方法发现,Cadmium arachidate 分子的分子膜的加入,构成 ABAB…CC…ABAB…CC…型多层 LB 膜,是一种稳定性较好的非中心对称膜。
Langmuir-Blodgett (LB) films are formed by the successive deposition of one or more types of amphiphilic molecules initally spread at the inter- face between water and air.Laminated ploymeric LB alternative multilay- ers is kind of stable non-centrosymmetric matiral.X ray diffraction and SHG measurement showed good evidence for that some alternating system containing fatty acid have good order with repeat distance corresponding to the expected-superlattice.These finding will be useful in selecting systems for future non-linear optios applications.
出处
《安徽大学学报(自然科学版)》
CAS
1992年第4期63-68,共6页
Journal of Anhui University(Natural Science Edition)
关键词
LB膜
非线性光学
光通信
hydrophilic
hydrophobic
LBfilm
non-centrosymnetric
second Haimonic Gendration (SHG)